Hobart Welding Products AIRFORCE 375 OM-2210 - Manual (Page 16)

OM-2210 Page 12
3-4. Duty Cycle And Overheating For Non-CE Model
Duty Cycle is percentage of 10 min-
utes that unit can cut at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, Temperature
trouble light goes On, and cooling
fan runs. Wait fifteen minutes for
unit to cool or temperature light to
go off. Reduce amperage or duty
cycle before cutting or gouging.
Y Exceeding duty cycle can
damage unit and void
warranty.
Overheating
sduty1 5/95 / 801 302-C
3-1/2 Minutes Cutting 6-1/2 Minutes Resting
35% Duty Cycle At 27 Amperes, 91 volts dc
6 Minutes Welding 4 Minutes Resting Continuous Welding
60% Duty Cycle At 21 Amperes, 88 volts dc
100% Duty Cycle At 17 Amperes, 87 volts dc
35% duty cycle
60% duty cycle 100% duty cycle
For Units Connected to a 20 Ampere, 115 Volt Circuit
or a 10 Ampere, 230 Volt Circuit:
For Units Connected to a 30 Ampere, 115 Volt Circuit
or a 15 Ampere, 230 Volt Circuit:
35% Duty Cycle At 21 Amperes, 88 volts dc
0
15
Minutes
A
OR
Reduce Duty Cycle
3-5. Duty Cycle And Overheating For CE Model
Duty Cycle is percentage of 10 min-
utes that unit can cut at rated load
without overheating.
If unit overheats, thermostat(s)
opens, output stops, Temperature
trouble light goes On, and cooling
fan runs. Wait fifteen minutes for
unit to cool or temperature light to
go off. Reduce amperage or duty
cycle before cutting or gouging.
Y Exceeding duty cycle can
damage unit and void
warranty.
Overheating
duty1 4/95 – 801 302-C
230 VAC Input Power: 35% Duty Cycle At 25 Amperes
3-1/2 Minutes Cutting 6-1/2 Minutes Resting
0
15
Minutes
A
OR
Reduce Duty Cycle
115 VAC Input Power: 35% Duty Cycle At 20 Amperes, 20 Ampere Input Circuit
115 VAC Input Power: 35% Duty Cycle At 25 Amperes, 30 Ampere Input Circuit